/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:49:44,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:49:44,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:49:44,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:49:44,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:49:44,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:49:44,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:49:44,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:49:44,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:49:44,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:49:44,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:49:44,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:49:44,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:49:44,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:49:44,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:49:44,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:49:44,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:49:44,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:49:44,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:49:44,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:49:44,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:49:44,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:49:44,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:49:44,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:49:44,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-16 15:49:44,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:49:44,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:49:44,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:49:44,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-06-16 15:49:44,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:49:44,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:49:44,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:49:44,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:49:44,264 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:49:44,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:49:44,265 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:49:44,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:49:44,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:49:44,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:49:44,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:49:44,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:49:44,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:49:44,266 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:49:44,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:49:44,266 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:49:44,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:49:44,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:49:44,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:49:44,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:49:44,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:49:44,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:49:44,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:49:44,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:49:44,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:49:44,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:49:44,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:49:44,268 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:49:44,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:49:44,268 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:49:44,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:49:44,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:49:44,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:49:44,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:49:44,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:49:44,534 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:49:44,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2021-06-16 15:49:44,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db103471/a604fc34050940e586c4886ec1e31239/FLAG3b89ae4f6 [2021-06-16 15:49:44,944 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:49:44,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2021-06-16 15:49:44,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db103471/a604fc34050940e586c4886ec1e31239/FLAG3b89ae4f6 [2021-06-16 15:49:45,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db103471/a604fc34050940e586c4886ec1e31239 [2021-06-16 15:49:45,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:49:45,320 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:49:45,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:49:45,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:49:45,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:49:45,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d4523c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45, skipping insertion in model container [2021-06-16 15:49:45,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:49:45,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:49:45,461 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i[949,962] [2021-06-16 15:49:45,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:49:45,555 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:49:45,589 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i[949,962] [2021-06-16 15:49:45,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:49:45,660 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:49:45,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45 WrapperNode [2021-06-16 15:49:45,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:49:45,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:49:45,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:49:45,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:49:45,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:49:45,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:49:45,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:49:45,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:49:45,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... [2021-06-16 15:49:45,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:49:45,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:49:45,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:49:45,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:49:45,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:49:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:49:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:49:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:49:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:49:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:49:45,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:49:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:49:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:49:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-16 15:49:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-16 15:49:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:49:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:49:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:49:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:49:45,762 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 15:49:46,069 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:49:46,069 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:49:46,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:49:46 BoogieIcfgContainer [2021-06-16 15:49:46,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:49:46,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:49:46,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:49:46,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:49:46,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:49:45" (1/3) ... [2021-06-16 15:49:46,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f144bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:49:46, skipping insertion in model container [2021-06-16 15:49:46,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:45" (2/3) ... [2021-06-16 15:49:46,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f144bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:49:46, skipping insertion in model container [2021-06-16 15:49:46,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:49:46" (3/3) ... [2021-06-16 15:49:46,079 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt.i [2021-06-16 15:49:46,083 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:49:46,083 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:49:46,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:49:46,084 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:49:46,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,113 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,113 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,113 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,113 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,114 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,114 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,116 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,116 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,117 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,118 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,122 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,122 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,123 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,123 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,126 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,126 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,127 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,127 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,132 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:46,137 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:49:46,152 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-16 15:49:46,177 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:49:46,177 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:49:46,178 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:49:46,178 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:49:46,178 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:49:46,178 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:49:46,178 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:49:46,178 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:49:46,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 8009 states, 6869 states have (on average 2.215606347357694) internal successors, (15219), 8008 states have internal predecessors, (15219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:46,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-16 15:49:46,762 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:46,763 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:46,763 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:46,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:46,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1358275693, now seen corresponding path program 1 times [2021-06-16 15:49:46,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:46,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695846237] [2021-06-16 15:49:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:46,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:46,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:46,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:46,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:47,005 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:47,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:47,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:47,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:47,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:47,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:47,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695846237] [2021-06-16 15:49:47,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695846237] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:47,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:47,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:49:47,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344263718] [2021-06-16 15:49:47,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:49:47,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:47,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:49:47,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:49:47,072 INFO L87 Difference]: Start difference. First operand has 8009 states, 6869 states have (on average 2.215606347357694) internal successors, (15219), 8008 states have internal predecessors, (15219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:47,297 INFO L93 Difference]: Finished difference Result 10487 states and 20002 transitions. [2021-06-16 15:49:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:49:47,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-16 15:49:47,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:47,330 INFO L225 Difference]: With dead ends: 10487 [2021-06-16 15:49:47,330 INFO L226 Difference]: Without dead ends: 2303 [2021-06-16 15:49:47,331 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 104.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:49:47,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2021-06-16 15:49:47,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2303. [2021-06-16 15:49:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 2261 states have (on average 2.141530296329058) internal successors, (4842), 2302 states have internal predecessors, (4842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 4842 transitions. [2021-06-16 15:49:47,441 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 4842 transitions. Word has length 49 [2021-06-16 15:49:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:47,441 INFO L482 AbstractCegarLoop]: Abstraction has 2303 states and 4842 transitions. [2021-06-16 15:49:47,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 4842 transitions. [2021-06-16 15:49:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-16 15:49:47,445 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:47,445 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:47,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:49:47,445 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:47,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:47,447 INFO L82 PathProgramCache]: Analyzing trace with hash 2014398478, now seen corresponding path program 1 times [2021-06-16 15:49:47,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:47,447 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966751622] [2021-06-16 15:49:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:47,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:47,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:47,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:47,513 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:47,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:47,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:47,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:47,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:47,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:47,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966751622] [2021-06-16 15:49:47,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966751622] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:47,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:47,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:47,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516000606] [2021-06-16 15:49:47,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:47,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:47,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:47,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:47,545 INFO L87 Difference]: Start difference. First operand 2303 states and 4842 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:47,677 INFO L93 Difference]: Finished difference Result 3031 states and 6655 transitions. [2021-06-16 15:49:47,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:49:47,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-16 15:49:47,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:47,683 INFO L225 Difference]: With dead ends: 3031 [2021-06-16 15:49:47,684 INFO L226 Difference]: Without dead ends: 1575 [2021-06-16 15:49:47,685 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 107.2ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:49:47,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2021-06-16 15:49:47,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1575. [2021-06-16 15:49:47,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1547 states have (on average 2.231415643180349) internal successors, (3452), 1574 states have internal predecessors, (3452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 3452 transitions. [2021-06-16 15:49:47,712 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 3452 transitions. Word has length 51 [2021-06-16 15:49:47,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:47,712 INFO L482 AbstractCegarLoop]: Abstraction has 1575 states and 3452 transitions. [2021-06-16 15:49:47,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 3452 transitions. [2021-06-16 15:49:47,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-16 15:49:47,716 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:47,716 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:47,716 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:49:47,716 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:47,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:47,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1767739919, now seen corresponding path program 1 times [2021-06-16 15:49:47,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:47,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705027108] [2021-06-16 15:49:47,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:47,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:47,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:47,783 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:49:47,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:49:47,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:49:47,808 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:49:47,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:47,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:47,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:47,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:47,847 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705027108] [2021-06-16 15:49:47,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705027108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:47,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:47,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:49:47,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731843492] [2021-06-16 15:49:47,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:49:47,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:47,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:49:47,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:49:47,848 INFO L87 Difference]: Start difference. First operand 1575 states and 3452 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:47,987 INFO L93 Difference]: Finished difference Result 2007 states and 4290 transitions. [2021-06-16 15:49:47,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:49:47,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-16 15:49:47,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:47,993 INFO L225 Difference]: With dead ends: 2007 [2021-06-16 15:49:47,993 INFO L226 Difference]: Without dead ends: 1447 [2021-06-16 15:49:47,994 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 133.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:49:47,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2021-06-16 15:49:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1447. [2021-06-16 15:49:48,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 1419 states have (on average 2.1994362226920368) internal successors, (3121), 1446 states have internal predecessors, (3121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 3121 transitions. [2021-06-16 15:49:48,028 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 3121 transitions. Word has length 53 [2021-06-16 15:49:48,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:48,053 INFO L482 AbstractCegarLoop]: Abstraction has 1447 states and 3121 transitions. [2021-06-16 15:49:48,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 3121 transitions. [2021-06-16 15:49:48,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-16 15:49:48,056 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:48,056 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:48,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:49:48,056 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:48,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:48,059 INFO L82 PathProgramCache]: Analyzing trace with hash 648482191, now seen corresponding path program 1 times [2021-06-16 15:49:48,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:48,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799677684] [2021-06-16 15:49:48,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:48,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,154 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:49:48,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:49:48,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:49:48,176 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:49:48,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:48,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:48,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799677684] [2021-06-16 15:49:48,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799677684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:48,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:48,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:48,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079873351] [2021-06-16 15:49:48,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:48,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:48,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:48,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:48,186 INFO L87 Difference]: Start difference. First operand 1447 states and 3121 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:48,307 INFO L93 Difference]: Finished difference Result 1411 states and 2853 transitions. [2021-06-16 15:49:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:49:48,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-16 15:49:48,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:48,311 INFO L225 Difference]: With dead ends: 1411 [2021-06-16 15:49:48,311 INFO L226 Difference]: Without dead ends: 910 [2021-06-16 15:49:48,312 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 99.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-16 15:49:48,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-06-16 15:49:48,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2021-06-16 15:49:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 886 states have (on average 2.023702031602709) internal successors, (1793), 909 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1793 transitions. [2021-06-16 15:49:48,327 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1793 transitions. Word has length 54 [2021-06-16 15:49:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:48,327 INFO L482 AbstractCegarLoop]: Abstraction has 910 states and 1793 transitions. [2021-06-16 15:49:48,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,328 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1793 transitions. [2021-06-16 15:49:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-16 15:49:48,329 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:48,330 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:48,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:49:48,330 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:48,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:48,330 INFO L82 PathProgramCache]: Analyzing trace with hash 801917612, now seen corresponding path program 1 times [2021-06-16 15:49:48,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:48,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551166125] [2021-06-16 15:49:48,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:48,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,392 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:49:48,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:49:48,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:49:48,411 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:49:48,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:48,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:48,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551166125] [2021-06-16 15:49:48,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551166125] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:48,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:48,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:49:48,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578339110] [2021-06-16 15:49:48,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:49:48,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:48,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:49:48,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:49:48,420 INFO L87 Difference]: Start difference. First operand 910 states and 1793 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:48,547 INFO L93 Difference]: Finished difference Result 667 states and 1158 transitions. [2021-06-16 15:49:48,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:49:48,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-16 15:49:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:48,549 INFO L225 Difference]: With dead ends: 667 [2021-06-16 15:49:48,549 INFO L226 Difference]: Without dead ends: 377 [2021-06-16 15:49:48,549 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 89.3ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:49:48,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-06-16 15:49:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2021-06-16 15:49:48,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 368 states have (on average 1.5380434782608696) internal successors, (566), 376 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 566 transitions. [2021-06-16 15:49:48,554 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 566 transitions. Word has length 56 [2021-06-16 15:49:48,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:48,554 INFO L482 AbstractCegarLoop]: Abstraction has 377 states and 566 transitions. [2021-06-16 15:49:48,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,554 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 566 transitions. [2021-06-16 15:49:48,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 15:49:48,555 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:48,555 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:48,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:49:48,555 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:48,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:48,555 INFO L82 PathProgramCache]: Analyzing trace with hash -24630094, now seen corresponding path program 1 times [2021-06-16 15:49:48,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:48,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026938973] [2021-06-16 15:49:48,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:48,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,640 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:48,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:48,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:48,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:48,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026938973] [2021-06-16 15:49:48,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026938973] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:48,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:48,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:48,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970183023] [2021-06-16 15:49:48,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:48,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:48,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:48,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:48,676 INFO L87 Difference]: Start difference. First operand 377 states and 566 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:48,737 INFO L93 Difference]: Finished difference Result 579 states and 914 transitions. [2021-06-16 15:49:48,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 15:49:48,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-16 15:49:48,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:48,739 INFO L225 Difference]: With dead ends: 579 [2021-06-16 15:49:48,739 INFO L226 Difference]: Without dead ends: 305 [2021-06-16 15:49:48,740 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:49:48,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-06-16 15:49:48,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2021-06-16 15:49:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 296 states have (on average 1.614864864864865) internal successors, (478), 304 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 478 transitions. [2021-06-16 15:49:48,744 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 478 transitions. Word has length 60 [2021-06-16 15:49:48,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:48,744 INFO L482 AbstractCegarLoop]: Abstraction has 305 states and 478 transitions. [2021-06-16 15:49:48,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,744 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 478 transitions. [2021-06-16 15:49:48,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 15:49:48,744 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:48,745 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:48,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-16 15:49:48,745 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:48,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1139392718, now seen corresponding path program 2 times [2021-06-16 15:49:48,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:48,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64080202] [2021-06-16 15:49:48,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:48,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,795 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-16 15:49:48,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-16 15:49:48,804 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:48,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:48,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:48,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:48,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64080202] [2021-06-16 15:49:48,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64080202] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:48,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:48,835 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:48,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39117537] [2021-06-16 15:49:48,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:48,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:48,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:48,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:48,837 INFO L87 Difference]: Start difference. First operand 305 states and 478 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:48,905 INFO L93 Difference]: Finished difference Result 269 states and 418 transitions. [2021-06-16 15:49:48,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 15:49:48,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-16 15:49:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:48,906 INFO L225 Difference]: With dead ends: 269 [2021-06-16 15:49:48,906 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:49:48,906 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 87.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:49:48,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:49:48,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:49:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:49:48,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-06-16 15:49:48,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:48,907 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:49:48,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:49:48,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:49:48,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-16 15:49:48,908 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:49:48,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:49:48 BasicIcfg [2021-06-16 15:49:48,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:49:48,912 INFO L168 Benchmark]: Toolchain (without parser) took 3589.94 ms. Allocated memory was 205.5 MB in the beginning and 290.5 MB in the end (delta: 84.9 MB). Free memory was 168.6 MB in the beginning and 253.6 MB in the end (delta: -85.0 MB). Peak memory consumption was 318.3 kB. Max. memory is 8.0 GB. [2021-06-16 15:49:48,913 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 205.5 MB. Free memory is still 186.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:49:48,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.68 ms. Allocated memory is still 205.5 MB. Free memory was 168.4 MB in the beginning and 168.8 MB in the end (delta: -420.1 kB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:48,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.76 ms. Allocated memory is still 205.5 MB. Free memory was 168.3 MB in the beginning and 166.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:48,915 INFO L168 Benchmark]: Boogie Preprocessor took 18.39 ms. Allocated memory is still 205.5 MB. Free memory was 166.7 MB in the beginning and 165.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:48,916 INFO L168 Benchmark]: RCFGBuilder took 364.16 ms. Allocated memory is still 205.5 MB. Free memory was 165.2 MB in the beginning and 141.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:48,918 INFO L168 Benchmark]: TraceAbstraction took 2835.92 ms. Allocated memory was 205.5 MB in the beginning and 290.5 MB in the end (delta: 84.9 MB). Free memory was 141.0 MB in the beginning and 253.6 MB in the end (delta: -112.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:49:48,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 205.5 MB. Free memory is still 186.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 338.68 ms. Allocated memory is still 205.5 MB. Free memory was 168.4 MB in the beginning and 168.8 MB in the end (delta: -420.1 kB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.76 ms. Allocated memory is still 205.5 MB. Free memory was 168.3 MB in the beginning and 166.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.39 ms. Allocated memory is still 205.5 MB. Free memory was 166.7 MB in the beginning and 165.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 364.16 ms. Allocated memory is still 205.5 MB. Free memory was 165.2 MB in the beginning and 141.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2835.92 ms. Allocated memory was 205.5 MB in the beginning and 290.5 MB in the end (delta: 84.9 MB). Free memory was 141.0 MB in the beginning and 253.6 MB in the end (delta: -112.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28423, positive: 27360, positive conditional: 27360, positive unconditional: 0, negative: 1063, negative conditional: 1063, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27986, positive: 27360, positive conditional: 0, positive unconditional: 27360, negative: 626, negative conditional: 0, negative unconditional: 626, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 864, positive: 852, positive conditional: 0, positive unconditional: 852, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 864, positive: 848, positive conditional: 0, positive unconditional: 848, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27986, positive: 26508, positive conditional: 0, positive unconditional: 26508, negative: 614, negative conditional: 0, negative unconditional: 614, unknown: 864, unknown conditional: 0, unknown unconditional: 864] , Statistics on independence cache: Total cache size (in pairs): 864, Positive cache size: 852, Positive conditional cache size: 0, Positive unconditional cache size: 852, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Independence queries for same thread: 437 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2731.8ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 48.6ms, AutomataDifference: 965.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 546.5ms, PartialOrderReductionTime: 533.8ms, HoareTripleCheckerStatistics: 605 SDtfs, 864 SDslu, 2023 SDs, 0 SdLazy, 280 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 194.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 690.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8009occurred in iteration=0, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 185.8ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.0ms SsaConstructionTime, 185.3ms SatisfiabilityAnalysisTime, 594.4ms InterpolantComputationTime, 383 NumberOfCodeBlocks, 383 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 1100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...